Extech Instruments 42509 Manuel d'utilisateur Page 1

User Manual Dual Laser InfraRed (IR) Thermometer with Color Alert MODEL 42509

42509-en-GB_V1.4 12/14 2 Introduction Congratulations on your purchase of the Model 42509 IR Thermometer with Color Alert. This Infrared thermomete

42509-en-GB_V1.4 12/14 3 Meter Description 1. Dual Laser pointers 2. LCD Display 3. Function Buttons 4. Measurement Trigger 5. Battery and

42509-en-GB_V1.4 12/14 4 Operating Instructions Temperature Measurements 1. Hold the meter by its handle and point it toward the surface to be meas

42509-en-GB_V1.4 12/14 5 MAX (maximum) temperature display The highest reading encountered during a single measurement scan is displayed in the MAX

42509-en-GB_V1.4 12/14 6 Color Alert High and Low Alarm Feature The meter has a programmable high and low alarm feature. When either alarm point is

42509-en-GB_V1.4 12/14 7 IR Measurement Notes 1. The object under test should be larger than the spot (target) size calculated by the field of view

42509-en-GB_V1.4 12/14 8 Emissivity and IR Measurement Theory IR Thermometers measure the surface temperature of an object. The thermometer’s optics

42509-en-GB_V1.4 12/14 9 Specifications Range -20 to 510oC (-4 to 950oF) Resolution 0.1o Accuracy -20°C to -2°C (-4°F to 28°F) ± 4°C/9°F -2°C